Tiruchirappalli–Madurai line
E644985
The Tiruchirappalli–Madurai line is a key railway route in the Indian state of Tamil Nadu that connects the major cities of Tiruchirappalli and Madurai, serving as an important corridor for both passenger and freight traffic.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Tiruchirappalli–Madurai line canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7123999 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Tiruchirappalli–Madurai line Context triple: [Tiruchirappalli Junction railway station, hasLine, Tiruchirappalli–Madurai line]
-
A.
Chennai–Tiruchirappalli line
The Chennai–Tiruchirappalli line is a major electrified broad-gauge railway corridor in Tamil Nadu, India, connecting the state capital Chennai with the important inland city of Tiruchirappalli and forming part of the busy Southern Railway network.
-
B.
Rameswaram–Mandapam rail line
The Rameswaram–Mandapam rail line is a coastal railway route in Tamil Nadu, India, that connects the mainland to Rameswaram Island and includes the historic Pamban Bridge over the Palk Strait.
-
C.
Chennai–Tirupati route
The Chennai–Tirupati route is a major road and rail corridor in South India connecting the metropolitan city of Chennai in Tamil Nadu with the pilgrimage city of Tirupati in Andhra Pradesh.
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D.
Delhi–Chennai line
The Delhi–Chennai line is a major Indian Railways trunk route connecting the national capital New Delhi with the southern metropolis Chennai, passing through key central Indian cities such as Nagpur.
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E.
Nagpur–Secunderabad line
The Nagpur–Secunderabad line is a major railway route in central and southern India that connects Nagpur in Maharashtra with Secunderabad in Telangana, serving as an important corridor for both passenger and freight traffic.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Tiruchirappalli–Madurai line Target entity description: The Tiruchirappalli–Madurai line is a key railway route in the Indian state of Tamil Nadu that connects the major cities of Tiruchirappalli and Madurai, serving as an important corridor for both passenger and freight traffic.
-
A.
Chennai–Tiruchirappalli line
The Chennai–Tiruchirappalli line is a major electrified broad-gauge railway corridor in Tamil Nadu, India, connecting the state capital Chennai with the important inland city of Tiruchirappalli and forming part of the busy Southern Railway network.
-
B.
Rameswaram–Mandapam rail line
The Rameswaram–Mandapam rail line is a coastal railway route in Tamil Nadu, India, that connects the mainland to Rameswaram Island and includes the historic Pamban Bridge over the Palk Strait.
-
C.
Chennai–Tirupati route
The Chennai–Tirupati route is a major road and rail corridor in South India connecting the metropolitan city of Chennai in Tamil Nadu with the pilgrimage city of Tirupati in Andhra Pradesh.
-
D.
Delhi–Chennai line
The Delhi–Chennai line is a major Indian Railways trunk route connecting the national capital New Delhi with the southern metropolis Chennai, passing through key central Indian cities such as Nagpur.
-
E.
Nagpur–Secunderabad line
The Nagpur–Secunderabad line is a major railway route in central and southern India that connects Nagpur in Maharashtra with Secunderabad in Telangana, serving as an important corridor for both passenger and freight traffic.
- F. None of above. chosen
Statements (24)
| Predicate | Object |
|---|---|
| instanceOf |
railway line
ⓘ
railway route ⓘ |
| category |
Rail transport in Tamil Nadu
ⓘ
Railway lines in India ⓘ |
| connects |
Madurai
ⓘ
Tiruchirappalli ⓘ |
| connectsMajorCities | yes ⓘ |
| country | India ⓘ |
| electrification | electrified ⓘ |
| gauge | broad gauge ⓘ |
| importance | key railway corridor in Tamil Nadu ⓘ |
| locatedIn | Tamil Nadu ⓘ |
| majorStation |
Madurai Junction
ⓘ
linked to:
Madurai Junction railway station
Tiruchirappalli Junction ⓘ
linked to:
Tiruchirappalli Junction railway station
|
| operator | Indian Railways ⓘ |
| partOf | Southern Railway zone ⓘ |
| passesThrough |
Dindigul district
ⓘ
Madurai district ⓘ Tiruchirappalli district ⓘ |
| railwayZone | Southern Railway zone ⓘ |
| regionServed | central Tamil Nadu ⓘ |
| state | Tamil Nadu ⓘ |
| usedFor |
freight traffic
ⓘ
passenger traffic ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Tiruchirappalli–Madurai line Description of subject: The Tiruchirappalli–Madurai line is a key railway route in the Indian state of Tamil Nadu that connects the major cities of Tiruchirappalli and Madurai, serving as an important corridor for both passenger and freight traffic.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.